| abstract |
A silver-ion-containing zirconium phosphate represented by the following general formula [1], which is excellent in heat resistance and chemical resistance, less colors resins, and brings about excellent processability. AgaMbZrcHfd(PO4)3 ·nH2O [1] In the formula [1], M is at least one ion selected among alkali metal, hydrogen, and ammonium ions; a, b, c, and d each is a positive number, provided that a+b+4(c+d)=9 and 1.75<(c+d)<2.25; and n is 0 or a positive number of 2 or smaller. |